/* Inferno Steel Architecture Studio - Custom Styles */

:root {
  --primary-color: #D32F2F;
  --secondary-color: #424242;
  --dark-color: #1a1a1a;
  --light-color: #f5f5f5;
  --accent-color: #FF5252;
  --text-dark: #212121;
  --text-light: #ffffff;
  --transition: all 0.3s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--light-color);
  overflow-x: hidden;
}

/* Typography */
.display-1, .display-2, .display-3, .display-4, .display-5 {
  font-weight: 800 !important;
  letter-spacing: -0.02em;
  line-height: 1.1 !important;
}

.lead {
  font-weight: 400;
  opacity: 0.95;
}

/* Navigation */
.navbar {
  padding: 1rem 0;
  transition: var(--transition);
  background: linear-gradient(135deg, var(--dark-color) 0%, var(--secondary-color) 100%) !important;
  box-shadow: 0 2px 20px rgba(211, 47, 47, 0.1);
}

.navbar.scrolled {
  padding: 0.5rem 0;
  background: rgba(26, 26, 26, 0.98) !important;
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 30px rgba(211, 47, 47, 0.2);
}

.navbar-brand {
  font-size: 1.5rem !important;
  color: var(--text-light) !important;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: var(--transition);
}

.navbar-brand:hover {
  color: var(--primary-color) !important;
  transform: translateY(-2px);
}

.navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.9) !important;
  font-weight: 500;
  padding: 0.5rem 1.2rem !important;
  margin: 0 0.2rem;
  transition: var(--transition);
  position: relative;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
}

.navbar-nav .nav-link::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  background: var(--primary-color);
  transition: var(--transition);
}

.navbar-nav .nav-link:hover::before,
.navbar-nav .nav-link.active::before {
  width: 80%;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--primary-color) !important;
}

.navbar-toggler {
  border: 2px solid var(--primary-color) !important;
  padding: 0.5rem 0.75rem;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 0.25rem rgba(211, 47, 47, 0.25) !important;
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23D32F2F' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

/* Hero Section */
.hero-section {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--dark-color) 0%, var(--secondary-color) 50%, #1a1a1a 100%);
  position: relative;
  padding-top: 80px;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 30%, rgba(211, 47, 47, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(255, 82, 82, 0.1) 0%, transparent 50%);
  animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
  0% { opacity: 0.5; }
  100% { opacity: 1; }
}

.hero-section .position-absolute {
  z-index: 1;
}

.hero-section .container {
  position: relative;
  z-index: 2;
}

.hero-section .text-white {
  color: var(--text-light) !important;
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
}

.hero-section .display-1 {
  animation: fadeInUp 1s ease-out;
  background: linear-gradient(135deg, #ffffff 0%, var(--primary-color) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-section .lead {
  animation: fadeInUp 1s ease-out 0.2s backwards;
  color: rgba(255, 255, 255, 0.95) !important;
  text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.5);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Buttons */
.btn {
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 50px;
  transition: var(--transition);
  border-width: 2px;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
  z-index: -1;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-lg {
  padding: 1rem 2.5rem !important;
  font-size: 1rem;
}

.btn-outline-light {
  color: var(--text-light) !important;
  border-color: var(--text-light) !important;
  background: transparent;
}

.btn-outline-light:hover {
  background: var(--text-light) !important;
  color: var(--primary-color) !important;
  border-color: var(--text-light) !important;
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(255, 255, 255, 0.3);
}

.btn-light {
  background: var(--text-light) !important;
  color: var(--primary-color) !important;
  border-color: var(--text-light) !important;
}

.btn-light:hover {
  background: var(--primary-color) !important;
  color: var(--text-light) !important;
  border-color: var(--primary-color) !important;
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(211, 47, 47, 0.4);
}

.btn-dark {
  background: var(--dark-color) !important;
  color: var(--text-light) !important;
  border-color: var(--dark-color) !important;
}

.btn-dark:hover {
  background: var(--primary-color) !important;
  color: var(--text-light) !important;
  border-color: var(--primary-color) !important;
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(211, 47, 47, 0.4);
}

.btn-outline-dark {
  color: var(--dark-color) !important;
  border-color: var(--dark-color) !important;
}

.btn-outline-dark:hover {
  background: var(--primary-color) !important;
  color: var(--text-light) !important;
  border-color: var(--primary-color) !important;
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(211, 47, 47, 0.4);
}

/* Cards */
.card {
  border: none !important;
  border-radius: 15px;
  transition: var(--transition);
  overflow: hidden;
  background: var(--text-light);
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(211, 47, 47, 0.2) !important;
}

.card-body {
  padding: 2rem;
}

.card.border-0 {
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.card.shadow {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1) !important;
}

.card.shadow-lg {
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15) !important;
}

.card.shadow-sm {
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05) !important;
}

.card-img-top {
  transition: var(--transition);
  height: 250px;
  object-fit: cover;
}

.card:hover .card-img-top {
  transform: scale(1.05);
}

.card-title {
  color: var(--text-dark) !important;
  font-weight: 700;
}

.card-text {
  color: var(--secondary-color) !important;
}

.card-header {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%) !important;
  color: var(--text-light) !important;
  font-weight: 600;
  border: none !important;
}

/* Sections */
section {
  position: relative;
}

.py-5 {
  padding: 5rem 0 !important;
}

.py-4 {
  padding: 3rem 0 !important;
}

.bg-light {
  background: linear-gradient(180deg, #fafafa 0%, #f5f5f5 100%) !important;
}

.bg-white {
  background: var(--text-light) !important;
}

.bg-dark {
  background: linear-gradient(135deg, var(--dark-color) 0%, var(--secondary-color) 100%) !important;
  color: var(--text-light) !important;
}

.bg-white-50 {
  background: rgba(255, 255, 255, 0.5) !important;
}

/* Images */
.img-fluid {
  border-radius: 15px;
  transition: var(--transition);
}

.img-fluid:hover {
  transform: scale(1.02);
  box-shadow: 0 15px 40px rgba(211, 47, 47, 0.2);
}

/* Icons */
.fas, .fab, .bi {
  color: var(--primary-color) !important;
  transition: var(--transition);
}

.card:hover .fas,
.card:hover .fab,
.card:hover .bi {
  transform: scale(1.1) rotate(5deg);
}

.fa-3x {
  font-size: 3rem !important;
}

.rounded-circle {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light) !important;
  box-shadow: 0 10px 30px rgba(211, 47, 47, 0.3);
}

.rounded-circle .bi,
.rounded-circle .fas {
  color: var(--text-light) !important;
  font-size: 2rem;
}

/* Text Colors */
.text-white {
  color: var(--text-light) !important;
}

.text-dark {
  color: var(--text-dark) !important;
}

.text-light {
  color: rgba(255, 255, 255, 0.9) !important;
}

.text-muted {
  color: #757575 !important;
}

.text-white-50 {
  color: rgba(255, 255, 255, 0.5) !important;
}

/* Badges */
.badge {
  padding: 0.5rem 1rem;
  font-weight: 600;
  border-radius: 50px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%) !important;
  color: var(--text-light) !important;
}

/* Forms */
.form-control,
.form-select {
  border: 2px solid #e0e0e0;
  border-radius: 10px;
  padding: 0.75rem 1rem;
  transition: var(--transition);
  background: var(--text-light);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary-color) !important;
  box-shadow: 0 0 0 0.25rem rgba(211, 47, 47, 0.15) !important;
  background: var(--text-light);
}

.form-control-lg {
  padding: 1rem 1.25rem;
  font-size: 1.1rem;
}

.form-label {
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 0.5rem;
}

.form-check-input {
  width: 1.25rem;
  height: 1.25rem;
  border: 2px solid #e0e0e0;
  cursor: pointer;
}

.form-check-input:checked {
  background-color: var(--primary-color) !important;
  border-color: var(--primary-color) !important;
}

.form-check-input:focus {
  border-color: var(--primary-color) !important;
  box-shadow: 0 0 0 0.25rem rgba(211, 47, 47, 0.15) !important;
}

.form-check-label {
  cursor: pointer;
  color: var(--text-dark);
}

/* Lists */
.list-unstyled {
  padding: 0;
  margin: 0;
  list-style: none;
}

.list-unstyled li {
  padding: 0.5rem 0;
}

/* Links */
a {
  color: var(--primary-color) !important;
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--accent-color) !important;
  text-decoration: none;
}

.text-decoration-none {
  text-decoration: none !important;
}

.text-decoration-none:hover {
  text-decoration: underline !important;
}

/* Footer Links */
footer a {
  color: rgba(255, 255, 255, 0.8) !important;
}

footer a:hover {
  color: var(--primary-color) !important;
  padding-left: 5px;
}

/* Social Icons */
.fab, .bi-facebook, .bi-instagram, .bi-youtube, .bi-twitter {
  font-size: 1.5rem;
  transition: var(--transition);
}

a .fab:hover,
a .bi:hover {
  transform: translateY(-5px) scale(1.2);
}

/* Ratio (Video Embed) */
.ratio {
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* Accordion */
.accordion-item {
  border: none !important;
  margin-bottom: 1rem;
  border-radius: 10px !important;
  overflow: hidden;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

.accordion-button {
  background: var(--text-light) !important;
  color: var(--text-dark) !important;
  font-weight: 600;
  padding: 1.25rem 1.5rem;
  border: none !important;
  box-shadow: none !important;
}

.accordion-button:not(.collapsed) {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%) !important;
  color: var(--text-light) !important;
}

.accordion-button:focus {
  box-shadow: none !important;
  border: none !important;
}

.accordion-button::after {
  filter: brightness(0) invert(1);
}

.accordion-button.collapsed::after {
  filter: none;
}

.accordion-body {
  padding: 1.5rem;
  background: var(--text-light);
  color: var(--secondary-color);
}

/* Modal */
.modal-content {
  border-radius: 15px;
  border: none;
  overflow: hidden;
}

.modal-header {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
  color: var(--text-light) !important;
  border: none;
  padding: 1.5rem 2rem;
}

.modal-title {
  color: var(--text-light) !important;
  font-weight: 700;
}

.modal-body {
  padding: 2rem;
}

.btn-close,
.btn-close-white {
  filter: brightness(0) invert(1);
  opacity: 1;
}

.btn-close:hover,
.btn-close-white:hover {
  opacity: 0.8;
  transform: rotate(90deg);
}

/* Utilities */
.shadow {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1) !important;
}

.shadow-lg {
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15) !important;
}

.shadow-sm {
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05) !important;
}

.rounded {
  border-radius: 10px !important;
}

.overflow-hidden {
  overflow: hidden !important;
}

/* Spacing */
.gap-3 {
  gap: 1rem !important;
}

.gap-4 {
  gap: 1.5rem !important;
}

.g-3 {
  --bs-gutter-x: 1rem !important;
  --bs-gutter-y: 1rem !important;
}

.g-4 {
  --bs-gutter-x: 1.5rem !important;
  --bs-gutter-y: 1.5rem !important;
}

.g-5 {
  --bs-gutter-x: 3rem !important;
  --bs-gutter-y: 3rem !important;
}

/* Position Utilities */
.position-relative {
  position: relative;
}

.position-absolute {
  position: absolute;
}

.fixed-top {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 1030;
}

.top-0 {
  top: 0 !important;
}

.start-50 {
  left: 50% !important;
}

.end-0 {
  right: 0 !important;
}

.translate-middle {
  transform: translate(-50%, -50%) !important;
}

/* Animations */
@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.animate-pulse {
  animation: pulse 2s ease-in-out infinite;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.fade-in {
  animation: fadeIn 1s ease-out;
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in-left {
  animation: slideInLeft 0.8s ease-out;
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in-right {
  animation: slideInRight 0.8s ease-out;
}

/* Scroll Animations */
.scroll-animate {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.scroll-animate.active {
  opacity: 1;
  transform: translateY(0);
}

/* Loading Spinner */
.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(211, 47, 47, 0.1);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Responsive Design */
@media (max-width: 991.98px) {
  .navbar-collapse {
    background: rgba(26, 26, 26, 0.98);
    padding: 1.5rem;
    margin-top: 1rem;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  }
  
  .navbar-nav .nav-link {
    padding: 0.75rem 1rem !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .navbar-nav .nav-link:last-child {
    border-bottom: none;
  }
  
  .hero-section {
    min-height: 100vh;
    padding-top: 100px;
  }
  
  .display-1 {
    font-size: 3rem !important;
  }
  
  .display-3 {
    font-size: 2.5rem !important;
  }
  
  .display-4 {
    font-size: 2rem !important;
  }
  
  .display-5 {
    font-size: 1.75rem !important;
  }
  
  .btn-lg {
    padding: 0.875rem 2rem !important;
  }
  
  .py-5 {
    padding: 3rem 0 !important;
  }
  
  .card-body {
    padding: 1.5rem;
  }
}

@media (max-width: 767.98px) {
  .display-1 {
    font-size: 2.5rem !important;
  }
  
  .display-3 {
    font-size: 2rem !important;
  }
  
  .display-4 {
    font-size: 1.75rem !important;
  }
  
  .hero-section {
    padding-top: 80px;
  }
  
  .btn-lg {
    padding: 0.75rem 1.5rem !important;
    font-size: 0.9rem;
  }
  
  .rounded-circle {
    width: 60px;
    height: 60px;
  }
  
  .rounded-circle .bi,
  .rounded-circle .fas {
    font-size: 1.5rem;
  }
}

@media (max-width: 575.98px) {
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  
  .display-1 {
    font-size: 2rem !important;
  }
  
  .py-5 {
    padding: 2rem 0 !important;
  }
  
  .card-body.p-5 {
    padding: 2rem !important;
  }
  
  .modal-body {
    padding: 1.5rem;
  }
}

/* Print Styles */
@media print {
  .navbar,
  .btn,
  footer {
    display: none !important;
  }
  
  body {
    background: white;
    color: black;
  }
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Focus Styles */
*:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

button:focus,
.btn:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Selection */
::selection {
  background: var(--primary-color);
  color: var(--text-light);
}

::-moz-selection {
  background: var(--primary-color);
  color: var(--text-light);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 12px;
}

::-webkit-scrollbar-track {
  background: var(--light-color);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary-color) 0%, var(--accent-color) 100%);
  border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-color);
}

/* Custom Utility Classes */
.bg-gradient-primary {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%) !important;
}

.text-gradient {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hover-lift {
  transition: var(--transition);
}

.hover-lift:hover {
  transform: translateY(-5px);
}

.border-primary {
  border-color: var(--primary-color) !important;
}

.border-secondary {
  border-color: var(--secondary-color) !important;
}

/* Loading State */
.loading {
  pointer-events: none;
  opacity: 0.6;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 30px;
  height: 30px;
  margin: -15px 0 0 -15px;
  border: 3px solid rgba(211, 47, 47, 0.2);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}